<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title></title>
    <!--引入Vue-->
    <script type="text/javascript" src="../js/vue.js"></script>
</head>
<body>
    <div class="root">
<!--        slice()方法,可以截取字符串-->
        姓:<input type="text" v-model="firstName"/><br/>
        名:<input type="text" v-model="lastName"/><br/>
        姓名:<span>{{firstName}}-{{lastName}}</span>
    </div>
</body>

<script type="text/javascript">
    new Vue({
        el:'.root',
        data:{
            firstName:'张',
            lastName:'三'
        }
    })
</script>
</html>
